APPENDIX NO. XIV. 
429 
No. XIV. 
Comparison of the Rensselaer climate with that at other Polar 
stations as depending on the difference of their respective 
mean Summer and Winter Temperatures .—By Charles A. 
Schott. 
The difference between the mean summer and winter temperatures of 
any given locality is an index to the nature of the climate, whether the 
same be continental, littoral, or insular. Great differences refer to the 
first, small differences to the latter. Small fluctuations in these figures 
indicate local disturbances; yet, upon the whole, they differ less among 
themselves than might have been anticipated, always bearing in mind 
that tbe conclusions depend on a small number of years of observations. 
The stations have been arranged in three groups, in the order of 
their latitudes, and are either situated in or close to the Polar circle. 
The average temperature, in.degrees of the Fahrenheit scale, during 
June, July, and August, is given in the column headed summer; and 
the average temperature during December, January, and February, 
follows in the next column. 
Station. 
Latitude. 
Summer 
Temperature. 
Winter 
Temperature. 
Difference. 
1. Siberian and It 
U88ian Nortl 
o / 
62 2 
American 
O 
+58*3 
Stations. 
o 
—36-6 
o 
94-9 
06 0 
+59-7 
—23-9 
83-6 
2. Stations on t 
he 1 Vest Cons 
78 37 
t of Grecnla 
+33*0 
nd. 
—29-6 
62*6 
Wostenholm.. 
76 33 
+38*0 
— 2S-7 
66-7 
72 48 
+35*2 
—12*5 
47-7 
70 41 
+40*7 
— 5-1 
45-8 
69 12 
4*42*4 
4- 0-8 
41-6 
3. Station 
West of Bo 
74 47 
fin's Bay. 
4*37-1 
—28-2 
65-3 
74 40 
4*35-9 
—26-7 
62-6 
73 14 
4*37-0 
—25-1 
62-1 
69 59 
4*38-0 
—27-7 
65-7 
09 21 
+35-2 
—21*3 
56*5 
67 25 
4*39-7 
—25-1 
64-8 
66 11 
4-35-1 
—20-5 
55-6 
65 12 
4-50-2 
—17-0 
67-2 
Mean, 62*3 
The above table yields some interesting results; the principal one 
being the gradual approach, as we proceed to the northward along the 
